Rule 132
(1) Any dealer claiming input tax deduction under rule 131, shall complete his return on a provisional basis each month, and the true apportionment for the year shall be made in the returns to be furnished for the sixth and final months of the year after calculating the apportionment under clause (3) or (5) of rule 131 for the part period and the whole year.
(2) Where, under sub-rule (1), in any period of one month the total input tax due on a dealer’s non-taxable transactions does not exceed five hundred rupees, all such input tax in that period shall be treated as input tax on taxable sales.